Waterman - if we are talking using these terms: birthright and sceptre - then would it be fair to further ask these questions:
Who has the birthright and the sceptre out of the children of Abraham's two wives' sons? Ishmael and Isaac. From Hagar and Sarai
Who has the birthright and sceptre out of Isaac's sons Jacob and Esau?
Who has the birthright and sceptre out of Jacob's sons from his two wives: Joseph and Judah - From Rachel and Leah
Would you say these stories are comparative in any way? That the division of these duties among sons is continued down Isaac's line; Ishmael becoming head of the arab nations line - Esau marrying into the Hittite line - also arab nations etc.
Quoting: redhouserebel Who has the birthright and the sceptre out of the children of Abraham's two wives' sons? Ishmael and Isaac. From Hagar and Sarai
Answer: Sarai was renamed by YHVY to Sarah, he called her the Mother Of All Living...and Issac his God's Chosen child, Sarah bore Issac at 90 years old. Issac carries the birthright and the sceptre...through his Seeline...to Jacob, since Esau sold his birthright to Jacob for a bowl of portage....then Jacob fought all night long with the Angel of the Lord (YHVH) to get his blessing...before the sun rose, YHVH gave Jacob the blessing, and renamed him O'Israel....Jocob's 12 sons are the Nation of Israel.
You see Sarai, took God's plan into her own hands, since she was barren, she sent her handmaiden, Haggar, an egyptian, to Abraham so he would have a son, Ishmael, was Sarai's plan, not God's plan.....Ishmael was jealous of Issac because he was YHVH's chosen, because of this jealousy, Sarah banned Haggar and Ishmael from their camp; Abraham didn't want to do it; however, YHVY told Abraham in a dream to do as Sarah wanted, so they were banned.
In the desert, Haggar and Ishmeal were about to die, from thirst, and YHVH spring up water for them to drink, and HE gave them the land of sand and wells....we call them today ARABS....Ishmeal's descendents also married Esau's descendents.....this is why Russia has wells...............
this is all in the Bible, have you read it?